Question

If M is atomic mass A is mass number then (M-A)/A is called

Answer 1

Answer:

Mass Defect

Explanation:

Packing fraction is the mass defect per nucleon i.e. elementary particle in the nucleus. The difference between atomic weight and mass number i.e. mass of elementary particle in the nucleus is known as mass defect. Hence,

p=Δm/A

p=M−A/A

Answer 2

Answer:

if M is atomic mass and A is mass number then (M-A)/A is called packing fraction